package com.company.hrmadmin.common.util;

import com.baomidou.mybatisplus.core.metadata.IPage;
import lombok.Data;

import java.io.Serializable;
import java.util.List;

/**
 * @author Song, Wei
 * Date: 2022/4/11 12:57
 */
@Data
public class PageUtil implements Serializable {
    private static final long serialVersionUID = 1L;
    /**
     * 总记录数
     */
    private Integer totalCount;
    /**
     * 每页记录数
     */
    private Integer pageSize;
    /**
     * 总页数
     */
    private Integer totalPage;
    /**
     * 当前页数
     */
    private Integer currPage;
    /**
     * 列表数据
     */
    private List<?> list;

    /**
     * 分页
     *
     * @param list       列表数据
     * @param totalCount 总记录数
     * @param pageSize   每页记录数
     * @param currPage   当前页数
     */
    public PageUtil(List<?> list, Integer totalCount, Integer pageSize, Integer currPage) {
        this.list = list;
        this.totalCount = totalCount;
        this.pageSize = pageSize;
        this.currPage = currPage;
        this.totalPage = (int) Math.ceil((double) totalCount / pageSize);
    }

    /**
     * 分页
     */
    public PageUtil(IPage<?> page) {
        this.list = page.getRecords();
        this.totalCount = (int) page.getTotal();
        this.pageSize = (int) page.getSize();
        this.currPage = (int) page.getCurrent();
        this.totalPage = (int) page.getPages();
    }
}
